Changes in Onset of Vegetation Growth on Svalbard, 2000–2020
The global temperature is increasing, and this is affecting the vegetation phenology in many parts of the world. The most prominent changes occur at northern latitudes such as our study area, which is Svalbard, located between 76300N and 80500N. A cloud-free time series of MODIS-NDVI data was proces...
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Online Access: | https://hdl.handle.net/10037/28011 https://doi.org/10.3390/rs14246346 |
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ftunivtroemsoe:oai:munin.uit.no:10037/28011 2023-05-15T14:27:33+02:00 Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 Karlsen, Stein Rune Elvebakk, Arve Tømmervik, Hans Belda, Santiago Stendardi, Laura 2022-12-15 https://hdl.handle.net/10037/28011 https://doi.org/10.3390/rs14246346 eng eng MDPI Remote Sensing Norges forskningsråd: 269927 info:eu-repo/grantAgreement/EC/H2020/869580/Norway/Global drivers, local consequences: Tools for global change adaptation and sustainable development of industrial and cultural Arctic “hubs”/ArcicHubs/ info:eu-repo/grantAgreement/EC/H2020/755617/Norway/Fluorescence-based photosynthesis estimates for vegetation productivity monitoring from space/SENTIFLEX/ Karlsen SRK, Elvebakk A, Tømmervik H, Belda S, Stendardi L. Changes in Onset of Vegetation Growth on Svalbard, 2000–2020. Remote Sensing. 2022;14 FRIDAID 2094315 doi:10.3390/rs14246346 2072-4292 https://hdl.handle.net/10037/28011 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 CC-BY VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.3390/rs14246346 2023-01-05T00:02:49Z The global temperature is increasing, and this is affecting the vegetation phenology in many parts of the world. The most prominent changes occur at northern latitudes such as our study area, which is Svalbard, located between 76300N and 80500N. A cloud-free time series of MODIS-NDVI data was processed. The dataset was interpolated to daily data during the 2000–2020 period with a 231.65 m pixel resolution. The onset of vegetation growth was mapped with a NDVI threshold method which corresponds well with a recent Sentinel-2 NDVI-based mapping of the onset of vegetation growth, which was in turn validated by a network of in-situ phenological data from time lapse cameras. The results show that the years 2000 and 2008 were extreme in terms of the late onset of vegetation growth. The year 2020 had the earliest onset of vegetation growth on Svalbard during the 21-year study. Each year since 2013 had an earlier or equally early timing in terms of the onset of the growth season compared with the 2000–2020 average. A linear trend of 0.57 days per year resulted in an earlier onset of growth of 12 days on average for the entire archipelago of Svalbard in 2020 compared to 2000. MODIS; NDVI; time series; onset of vegetation growth; trend; Arctic; Svalbard; spatial scales Article in Journal/Newspaper Arctic Arctic Svalbard University of Tromsø: Munin Open Research Archive Arctic Svalbard Remote Sensing 14 24 6346 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 |
spellingShingle |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 Karlsen, Stein Rune Elvebakk, Arve Tømmervik, Hans Belda, Santiago Stendardi, Laura Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 |
topic_facet |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 |
description |
The global temperature is increasing, and this is affecting the vegetation phenology in many parts of the world. The most prominent changes occur at northern latitudes such as our study area, which is Svalbard, located between 76300N and 80500N. A cloud-free time series of MODIS-NDVI data was processed. The dataset was interpolated to daily data during the 2000–2020 period with a 231.65 m pixel resolution. The onset of vegetation growth was mapped with a NDVI threshold method which corresponds well with a recent Sentinel-2 NDVI-based mapping of the onset of vegetation growth, which was in turn validated by a network of in-situ phenological data from time lapse cameras. The results show that the years 2000 and 2008 were extreme in terms of the late onset of vegetation growth. The year 2020 had the earliest onset of vegetation growth on Svalbard during the 21-year study. Each year since 2013 had an earlier or equally early timing in terms of the onset of the growth season compared with the 2000–2020 average. A linear trend of 0.57 days per year resulted in an earlier onset of growth of 12 days on average for the entire archipelago of Svalbard in 2020 compared to 2000. MODIS; NDVI; time series; onset of vegetation growth; trend; Arctic; Svalbard; spatial scales |
format |
Article in Journal/Newspaper |
author |
Karlsen, Stein Rune Elvebakk, Arve Tømmervik, Hans Belda, Santiago Stendardi, Laura |
author_facet |
Karlsen, Stein Rune Elvebakk, Arve Tømmervik, Hans Belda, Santiago Stendardi, Laura |
author_sort |
Karlsen, Stein Rune |
title |
Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 |
title_short |
Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 |
title_full |
Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 |
title_fullStr |
Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 |
title_full_unstemmed |
Changes in Onset of Vegetation Growth on Svalbard, 2000–2020 |
title_sort |
changes in onset of vegetation growth on svalbard, 2000–2020 |
publisher |
MDPI |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/28011 https://doi.org/10.3390/rs14246346 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Svalbard |
genre_facet |
Arctic Arctic Svalbard |
op_relation |
Remote Sensing Norges forskningsråd: 269927 info:eu-repo/grantAgreement/EC/H2020/869580/Norway/Global drivers, local consequences: Tools for global change adaptation and sustainable development of industrial and cultural Arctic “hubs”/ArcicHubs/ info:eu-repo/grantAgreement/EC/H2020/755617/Norway/Fluorescence-based photosynthesis estimates for vegetation productivity monitoring from space/SENTIFLEX/ Karlsen SRK, Elvebakk A, Tømmervik H, Belda S, Stendardi L. Changes in Onset of Vegetation Growth on Svalbard, 2000–2020. Remote Sensing. 2022;14 FRIDAID 2094315 doi:10.3390/rs14246346 2072-4292 https://hdl.handle.net/10037/28011 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/rs14246346 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
24 |
container_start_page |
6346 |
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1766301334709993472 |